time line project

Panama was part of the federation and country of Colombia but when Colombia rejected United States plans to build a canal across the Isthmus of Panama, the U.S. supported a revolution that led to the independence

The Bessemer process was the first inexpensive industrial process for the mass-production of steel from molten pig iron. The process is named after its inventor, Henry Bessemer, who took out a patent on the process in 1855

the Pacific Railroad Act chartered the Central Pacific and the Union Pacific Railroad Companies, and tasked them with building a transcontinental railroad that would link the United States from east to west. Over the next seven years, the two companies would race toward each other from Sacramento, California on the one side and Omaha, Nebraska on the other, struggling against great risks before they met at Promontory, Utah, on May 10, 1869.

declared that "Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction."

U.S. Secretary of State William H. Seward signs a treaty with Russia for the purchase of Alaska for $7 million. Despite the bargain price of roughly two cents an acre, the Alaskan purchase was ridiculed in Congress and in the press as "Seward's folly," "Seward's icebox," and President Andrew Johnson's "polar bear garden."

The amendment grants citizenship to "all persons born or naturalized in the United States" which included former slaves who had just been freed after the Civil War. The amendment had been rejected by most Southern states but was ratified by the required three-fourths of the states.

the right of citizens of the United States to vote shall not be denied or abridged by the United States or by any State on account of race, color, or previous condition of servitude."

was one of the most bitterly fought industrial disputes in the history of U.S. labor. The Homestead Steel Works, located southeast of Pittsburgh, was an important segment of ^Andrew Carnegie's empire

ended Spain's colonial empire in the Western Hemisphere and secured the position of the United States as a Pacific power. U.S. victory in the war produced a peace treaty that compelled the Spanish to relinquish claims on Cuba, and to cede sovereignty over Guam, Puerto Rico, and the Philippines to the United States.

the protection of equal privileges among countries trading with China and in support of Chinese territorial and administrative integrity. The statement was issued in the form of circular notes dispatched by U.S. Secretary of State John Hay to Great Britain, Germany, France, Italy, Japan, and Russia. The Open Door policy was received with almost universal approval in the United States